If x3+5x2+10k leaves remainder of -2x when divided by x2+2 then what is the value of k
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Answer:
k = -4/5
Step-by-step explanation:
by remainder thorem when p (x) os divided by x+2 thrn the remainder is p (-2)
it is given that the remainder is -2x,
therefore, p (-2)=-2x
(-2)^3+5 (-2)^2+10k=-2 (-2)
-8+20+10k=4
12+10k=4
k= -8/10
k= -4/5
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